1. Departments of Radiology, Kangnam St. Mary's Hospital, The Catholic University of Korea, Seoul 137-701, Korea.
2. Departments of Pathology, Kangnam St. Mary's Hospital, The Catholic University of Korea, Seoul 137-701, Korea.
3. Departments of Internal Medicine, Kangnam St. Mary's Hospital, The Catholic University of Korea, Seoul 137-701, Korea.
4. Departments of Orthopedic Surgery, Kangnam St. Mary's Hospital, The Catholic University of Korea, Seoul 137-701, Korea.